Introduced as a “special guest” by Team USA head coach (and his father in-law) Mike Sullivan, McAvoy — sporting a sling on his right arm — earned a round of applause from his teammates after entering the room.

U.S. head coach Mike Sullivan shared to his team that he had a “special guest” to read off the starters for the game.

Charlie McAvoy flew over to TD Garden to fire up his teammates. The injured United States defenseman read his team’s starting lineup before the 4 Nations Face-Off championship game against Canada on Thursday. U.S. head coach Mike Sullivan told his team they had a “special guest” to announce the team’s starters for the game.